<style>div{color: white;}</style>
<div style="margin: 10px;float: right;width: 100px;height: 100px;background-color: blue;">1</div>
<div style="clear: right; margin: 10px;float: right;width: 100px;height: 100px;background-color: blue;">2</div>
<div style="margin: 10px;float: right;width: 100px;height: 100px;background-color: blue;">3</div>
<div style="margin: 10px;float: right;width: 100px;height: 100px;background-color: blue;">4</div>
<div style="margin: 10px;float: right;width: 100px;height: 100px;background-color: blue;">5</div>
<div style="margin: 10px;float: right;width: 100px;height: 100px;background-color: blue;">6</div>
<div style="margin: 10px;float: right;width: 100px;height: 100px;background-color: blue;">7</div>